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November 12th, 2016, 03:32 PM  #1 
Member Joined: Sep 2016 From: zambia Posts: 31 Thanks: 0  binary operations
Let binary operation * be defined by a*b=ab+ab, where a and b are real numbers. Solve lx*2l=1 I have solved the question... now I am not so sure whether my answer is correct. I got x=1 or x=1/3 Last edited by skipjack; November 12th, 2016 at 05:21 PM. 
November 12th, 2016, 03:37 PM  #2 
Math Team Joined: Jul 2011 From: Texas Posts: 3,044 Thanks: 1627 
Your solutions are correct.


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